Matches 151 - 200 out of 640 < 1 2 3 4 5 6 7 8 9 10 11 12 13 >
Match Document Document Title
5362988 Local mid-rail generator circuit  
A voltage generation circuit (10) is provided including a first plurality of transistors (12, 14, 16, 18) having source/drain paths coupled in series to establish a first current path between a...
5363055 Photodiode preamplifier with programmable gain amplification  
A combined programmable gain and integrating amplifier comprises an operational amplifier having an inverting input terminal coupled to a reference voltage. A plurality of capacitors are...
5347174 Circuit arrangement for converting a voltage drop tapped from a test object from a predetermined input voltage range to a desired output voltage range  
A circuit arrangement for converting a voltage drop (ΔU) tapped from a test object from a predetermined input voltage range to a desired output voltage range includes a current mirror circuit fed...
5345123 Attenuator circuit operating with single point control  
An attenuator circuit uses single point control to adjust the attenuation levels between first and second nodes. The attenuator is set-up as a π-network with a pass transistor and first and second...
5343158 Amplifier device for a cable television distribution network  
The device comprises a first path provided with an amplifier (1) amplifying in a first frequency band, and a second path provided with an amplifier (2) amplifying in a direction opposite to that of...
5343084 Variable level periodic excitation circuit for a capacitive load  
A predetermined frequency and adjustable level excitation circuit for a capacitive load (B) having a first terminal connected to a reference voltage (G). The circuit includes two switches (S1, S2)...
5338988 Voltage converting circuit with low consumption driver  
A voltage converting circuit receiving an input voltage and an increased voltage and providing an output voltage higher than the input voltage at an output terminal, comprises a first pair of gate...
5332930 Phase locked loop circuitry with variable gain and bandwidth  
An adjustable current source circuit of a phase locked loop (PLL) circuitry fabricated on a single substrate provides a first current that is a function of an error voltage proportional to an...
5331209 Auto-reset circuit with improved testability  
A first active element has its first terminal coupled to a first power-supply terminal, its second terminal coupled through a resistor to a second power-supply terminal, and its third terminal...
5329169 Voltage dropping circuit for semiconductor device  
A voltage dropping circuit for a semiconductor device is provided. The voltage dropping circuit includes a control unit for producing a reference voltage from a first specified voltage, an output...
5323067 Self-disabling power-up detection circuit  
A CMOS power-up reset circuit provides a power-up output signal, useful to external circuits, when an applied power supply voltage exceeds a first predetermined value, and includes a ratioed...
5321726 Calibration of vector demodulator using statistical analysis  
In the calibration of a vector demodulator, a statistical approach is used for the analysis and correction of received data. The magnitude of each vector, defined by an (I,Q) pair in a received...
5315188 High voltage switching circuit  
A high voltage switching circuit includes a buffer circuit for buffering an input signal, a high voltage pumping circuit for producing a desired voltage in response to an output signal of the...
5315261 Compressing and expanding operational circuit with no use of clock signal  
An operational circuit without using a clock signal to be used for a compressing or expanding circuit, which comprises a first and second DC signals different in polarity from each other are...
5313105 Signal line increased current kicker terminator apparatus  
A terminator apparatus used with a SCSI bus line controls the voltage level of a notch occurring in data and/or control signals transferred on the bus line. The terminator apparatus includes a...
5313111 Substrate slew circuit providing reduced electron injection  
The described embodiments of the present invention provide a substrate slew circuit that eliminates electron injection. The slew circuit comprises a semiconductor substrate, first and second...
5309048 Distributed digital attenuator  
A digital attenuator circuit for attenuating RF frequencies implemented as an MMIC having series microstrip transmission lines between an RF input terminal and an RF output terminal and having at...
5306968 Rectifier circuit not using clock signal  
A rectifier circuit without using a clock signal is provided. In this circuit, a polarity judgment circuit receives an AC signal and judges the positive/negative polarity of voltage of the AC...
5305388 Bass compensation circuit for use in sound reproduction device  
A bass compensation circuit for use in a sound reproduction device is provided with a second-order positive feedback type high-pass filter. The filter has an operational amplifier and a first...
5302860 Circuit arrangement for automatic gain control  
A circuit arrangement for automatic gain control of NRZ data signals. In this arrangement there is detected with the aid of two comparators whether a logic level in the NRZ data signal produced by...
5298798 Amplitude control device  
An amplitude control device for controlling an amplitude of a data signal having an reference amplitude includes an A/D converter which converts the data signal to an n-bit digital signal, an...
5289051 Power MOSFET driver having auxiliary current source  
An assembly has an MOS power transistor with an output circuit and an input circuit, a load connected in series with the output circuit of the MOS power transistor, and a control stage for...
5285114 Phase lock loop charge pump with symmetrical charge and discharge currents  
A charge pump in a phase lock loop equalizes the charge and discharge currents flowing into the filter capacitor independent of the loop node voltage for providing a linear VCO output frequency....
5283477 Common driver circuit  
A common driver circuit for driving a load heavy in a capacitive property such as a common electrode or the like of a liquid crystal panel is composed of the simple circuit construction provided...
5283483 Slimmer circuit technique  
A fast parasitic-insensitive continuous-time filter and equalizer integrated circuit that uses an active integrator is described. Circuit techniques for excess-phase cancellation, and for setting...
5281873 Sense amplifier control circuit  
A sense amplifier control circuit controls the activation and deactivation of sense amplifiers without a lowering of the operation speed of the sense amplifiers, correctly carries out a control...
5276403 Nonlinear preemphasis-deemphasis system  
A nonlinear preemphasis-deemphasis system of simplified circuit configuration formed of nonlinear preemphasis and deemphasis circuits. The preemphasis circuit comprises a nonlinear signal increase...
5272389 Level shifter circuit  
A level shifter circuit includes first and second inverter circuits comprising first and second PMOS transistor and an NMOS transistor which are connected in series between a point of first...
5266848 CMOS circuit with reduced signal swing  
A CMOS circuit has a signal receiving unit, a signal processing unit and a driving circuit. The signal receiving unit converts a small amplitude signal from a bus into a large amplitude signal. The...
5266842 Charge pump circuit for a substrate voltage generator  
A charge pump circuit of a substrate voltage generator used for a semiconductor memory device, comprising a first transistor whose channel is connected between a first pumping capacitor and a...
5258658 Gamma correction circuit  
A gamma correction circuit including a differential amplifier for generating a current which decreases as an input voltage increases; a current control circuit for generating a current which is...
5254882 Method and device for processing two separately referenced signal levels  
The present invention includes a device (10) that accepts separately referenced signal levels at a single input. The device (10) receives an input signal at a latch (12), a translator circuit (14),...
5247208 Substrate bias generating device and operating method thereof  
A substrate bias generating circuit including waveform shaping circuits for producing two signals having different phases on the basis of signals in phase extracted from a ring oscillator and two...
5237222 Comparator circuit for an integrator  
A comparator circuit for an integrator comprises first and second transistors triggered by the integrator. The integrator has a current-controlled input. The transistors generate respective...
5220219 Electronically controlled variable gain amplifier  
An electronically controlled variable gain amplifier is disclosed which provides an output signal proportional to the value of an input signal multiplied by a gain factor, where the gain factor is...
5216290 Process of conserving charge and a boosting circuit in a high efficiency output buffer with NMOS output devices  
In one described embodiment of the present invention, an N-type metal oxide semiconductor (NMOS) output buffer boosts the voltage level on the gate of the pull-up device to improve output voltage...
5212474 Quasi-static level shifter  
A quasi-static level shifter includes an output stage including a first transistor which is controlled directly by the input signal, and a further transistor connected in series with the first...
5212415 Precharge circuit  
A precharge circuit is provided with a step-up node circuit including a capacitor for delivering a drive voltage at a predetermined level to a load, and for raising the voltage level of the drive...
5194761 Waveshaping subsystem using converter and delay lines  
A waveform generating circuit, wherein a master clock signal is fed into a tapped string of adjustable delay lines, and the tapped delay outputs are used to control selection of scaled voltage...
5192917 Circuit and method for detecting an amplitude and offset deviation of two sinusoidal signals  
To detect amplitude deviations and/or offset deviations in two sinusoidal signals (S1, S2), electrically staggered from each other by 90°, both signals (S1, S2) are evaluated by way of threshold...
5191232 High frequency voltage multiplier for an electrically erasable and programmable memory device  
A charge pump has a chain of diode connected MOS transistors to generate a high voltage output. Each of the serially connected MOS transistors has a capacitor with one end connected to the input of...
5189312 Multiplexer circuit having a simplified construction and reduced number of parts  
A multiplexer circuit comprises a plurality of voltage generation circuits which produce corresponding output voltages having respective, different voltage levels in accordance with an ordered...
5187619 High speed switched automatic gain control  
An automatic gain control circuit for controlling amplification of two independent input signals in which first and second attenuators are connected to receive the input signals and each attenuator...
5187397 Integrated semiconductor circuit with improved boost operation speed  
An integrated semiconductor circuit has a boost circuit that may improve boost operation speed. The boost circuit employs a P-channel type transistor as a driver. The back gate of the P-channel...
5185538 Output circuit for semiconductor integrated circuits having controllable load drive capability and operating method thereof  
An output circuit is disclosed for a semiconductor integrated circuit, having a controllable load drive capability. In a training mode for setting a load drive capability, a comparator compares the...
5184028 Current compensating charge pump circuit  
A charge pump circuit (10) has been provided for maintaining the currents sunk by each of the bottom current sources (12, 14) substantially equal to the current sourced from a first upper current...
5182476 Offset cancellation circuit and method of reducing pulse pairing  
An offset cancellation circuit corrects DC offset appearing at the input of a comparator circuit. The first input of a summing junction receives an input signal containing DC offset. The output of...
5182520 Non-linear de-emphasis circuit  
In an apparatus for non-linear de-emphasis of an input signal, an amplitude limiting signal is obtained by subtracting a high-pass filtered and amplitude limited input signal from the original...
5170072 Buffer device having a booster circuit for a semiconductor memory device  
A buffer device having a booster circuit for a semiconductor memory device offers a solution to a deficient boost operation of the booster circuit due to a skew in an address signal. The buffer...
5166559 Servo circuit having variable gain amplifier and temperature compensation characteristics  
A servo circuit adapted for controlling a variable gain amplifier to process an audio signal in a television receiver, a stereo apparatus or the like. The servo circuit comprises a variable gain...
Matches 151 - 200 out of 640 < 1 2 3 4 5 6 7 8 9 10 11 12 13 >